A point charge of 2nC is in the engine oil. What is the field strength of this charge at a distance of 5 cm from it?

Task data: q (value of the taken point charge) = 2 nC (2 * 10-9 C); r (considered distance from the charge) = 5 cm (0.05 m).

Reference values: ε (relative dielectric constant of engine oil) = 2.5; k (proportionality coefficient) = 9 * 10 ^ 9 N * m2 / Cl2.

The field strength at a given distance from the charge is calculated by the formula: E = k * q / (ε * r2).

Calculation: E = 9 * 10 ^ 9 * 2 * 10-9 / (2.5 * 0.052) = 2880 V / m.

Answer: The field strength of the taken charge is 2880 V / m.